Yes, you can upload a video to Facebook. To do this, you can go to your Facebook profile or page, click on the "Photo/Video" button, and then select the video file you want to upload from your computer. You can also add a title, description, and tags to your video before posting it. Keep in mind that there are certain file size and format requirements for uploading videos to Facebook. **

One cannot share Facebook publicly because it goes against the platform's privacy policies and terms of service. Sharing personal information or content publicly on Facebook can lead to potential security risks, such as identity theft or cyberbullying. Additionally, sharing content publicly may violate the privacy of others who are involved in the shared content. It is important to respect the privacy and security of oneself and others when using social media platforms like Facebook. **

Sharing Facebook publicly can pose privacy and security risks as it allows anyone, including strangers, to view your personal information, photos, and posts. This can lead to potential identity theft, cyberstalking, or unwanted attention. It is important to carefully manage your privacy settings on social media platforms to protect your personal information and ensure a safe online experience. **

Others may not be able to share your Facebook post if you have set the privacy settings to restrict sharing. You can adjust the privacy settings of your post to allow others to share it by selecting the option "Public" or "Friends" instead of "Only me" or a specific custom list. Additionally, if the post is from a page or group that has restricted sharing permissions, then members or followers may not be able to share the post outside of that specific page or group. **

To share a Facebook post on Instagram, you can follow these steps: 1. Open the Facebook app and find the post you want to share. 2. Tap on the three dots (more options) on the top right corner of the post. 3. Select the "Copy Link" option. 4. Open the Instagram app and tap on the plus icon to create a new post. 5. In the caption section, paste the link you copied from Facebook. 6. Instagram will automatically generate a preview of the link, which you can customize by deleting or adding text. 7. Once you are satisfied with the post, you can share it to your Instagram feed or story. Please note that sharing Facebook posts on Instagram may not always work perfectly due to privacy settings or restrictions set by the original poster. **

There could be several reasons why you may not be able to share some Facebook posts. Some common reasons include: 1. Privacy settings: The person who posted the content may have set their privacy settings to restrict who can share their posts. If the post is set to "Friends Only" or "Only Me," you may not be able to share it with others. 2. Content restrictions: Facebook has community standards that prohibit certain types of content, such as hate speech, violence, or nudity. If the post violates these standards, you may not be able to share it. 3. Technical issues: Sometimes, there may be technical issues with Facebook's platform that prevent you from sharing posts. This could be due to a temporary glitch or a problem with your internet connection. If you are unable to share a specific post, you can try reaching out to the person who posted it to ask them to adjust their privacy settings or check if there are any content restrictions that may be preventing you from sharing it. **

There could be several reasons why you are unable to upload pictures on Facebook. It could be due to a poor internet connection, a temporary issue with Facebook's servers, or a problem with your device or browser. Additionally, there may be restrictions on your account that prevent you from uploading pictures, such as a violation of Facebook's community standards or a temporary suspension. It is recommended to check your internet connection, try uploading from a different device or browser, and review any notifications or messages from Facebook regarding your account. **

To upload Facebook Live videos afterwards, you can save the video to your camera roll or device after ending the live stream. Then, you can go to your Facebook profile or page, click on the "Photo/Video" option, and select the saved video from your device to upload it. Make sure to add a catchy description and relevant tags to reach a wider audience. Finally, you can post the video on your timeline or share it with specific groups or friends. **